.header {
  height: 64px;
  div {
    float: left;
    &.title {
      width: 200px;
      color: #fff;
    }
    ul {
      list-style: none;
      height: 64px;
      padding: 0px;
      li {
        float: left;
        margin:0px 10px;
        a {
          padding: 10px;
          color: #fff;
          text-decoration: none;
          &:hover,&.active {
            color: #1890ff;
          }
        }
      }
    }
  }
}